Observable.Sum Method (IObservable<Double>)
Computes the sum of a sequence of Double values.
Namespace: System.Reactive.Linq
Assembly: System.Reactive (in System.Reactive.dll)
Syntax
'Declaration
<ExtensionAttribute> _
Public Shared Function Sum ( _
source As IObservable(Of Double) _
) As IObservable(Of Double)
'Usage
Dim source As IObservable(Of Double)
Dim returnValue As IObservable(Of Double)
returnValue = source.Sum()
public static IObservable<double> Sum(
this IObservable<double> source
)
[ExtensionAttribute]
public:
static IObservable<double>^ Sum(
IObservable<double>^ source
)
static member Sum :
source:IObservable<float> -> IObservable<float>
public static function Sum(
source : IObservable<double>
) : IObservable<double>
Parameters
- source
Type: System.IObservable<Double>
A sequence of Double values to calculate the sum of.
Return Value
Type: System.IObservable<Double>
The sum of a sequence of Double values.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<Double>. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .